AU609164B2

AU609164B2 - New depilatory composition

Info

Publication number: AU609164B2
Application number: AU19921/88A
Authority: AU
Inventors: Christian Des Garets
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-07-06
Filing date: 1988-06-21
Publication date: 1991-04-26
Anticipated expiration: 2008-06-21
Also published as: ES2033446T3; EP0299816A1; ATE72968T1; PT87918A; IL88364A; JPH02504268A; FR2644143B1; WO1989000041A1; FR2617708B1; ES2033446T5; CA1339084C; EP0299816B2; US5154919A; EP0299816B1; BR8807174A; AU1992188A; DE3868741D1; FR2644143A2; FR2617708A1; JP2636916B2

Abstract

A disposable depilatory composition including an elastomer, a resin and a softener or sweetener. This composition can be deposited on the skin in a thin layer and can be stripped from the skin without use of a film such as cellophane.

Description

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spreading the composition in liquid form by using a spatula or a distributing apparatus in order to obtain a thin layer on the skin

leaving the composition for a few moments to "settle" so that the thin layer gives rise by polymerization to a thin plastic film which catches the hairs without adhering to the skin and

peeling away said thin film in order to pull out the hair captured in the film.

i

AU-AI-19921/88 ORG,\>dSATiONNMONDIALE DEi LA J'oPiwETk i NTELLECTUELUE PCT Htire~iii internationaul

DEMANDE INTERNATIONALE PUBLIEE EN V' TR ED OO&AT! EN MATIERE DE BREVETS (PCT) 4 (51) Classification internationale des brevets V (I11*4umirle pv ation gternationale: WO 89/ 00041 A61K 7/155 A] (43) Date de publication internationale: 12 janvier 1989 (12.01.89)

(21) Numnio de la demnande internationale: PCT/FR88/00328 Publie A vec rapport de recherche iernationale. (22) Date de d~p6t international: 21 juin 1988 (21.06.88)

(31) Numeiro, de la demnande prioritaire: 87/09552 (32) Date de priorit6: 6juillet 1987 (06.07.87)

(33) Pays de priorite: FR IThis document Contains tile amendments made Linder (71)(72) D~posant et inventeur: DES GARETS, Christian Section 49 and is correct for

[FR/FR]; 9, rue Saint- Florentin, F-75008 Paris pr~inting. (74) Mandataire: ARMENGAUD, Alain; Cabinet Armen- gaud Aine, 3, avenue Bugeaud, F-751 16 Paris U R 23MR18 (81) Etats disignis: AU, BR, JP, US.

AUSTR~ALIAN 3 0 =AN 1989 PATENT OFFICE

(54) Title: NEW DEPILATORY COMPOSITION

(54) Titre: NOUVELLE COMPOSITION EPILATOIRE

(57) Abstract

A depilatory composition, called "depilatory wax", of the disposable type, which can be applied in a tnin layer on the surface of the skin, comprising a macromolecular, elastomeric and/or thermoplastic compound, colophony, and sof- tening and smoothing agents, is characterized by the following composition which can be applied in liquid form to the skin: macromolecular elastomeric and/or thermoplastic compound from 5 to 15 wt. natural and/or modified colophony from 40 to 80 wt. softening agent such as fat, oil or wax from 10 to 20 wt.

(57) Abrigi Composition pilatoire dite "cire A piler", du type jetable pouvant 8tre d~pos~e en couche mince sur la surface de Ia peau, comportant un compose macro-molftulaire, &lastom~re et/ou thermoplastique, de la colophane, et des assouplis- sants et adoucissants, caract~ris~e par ]a composition suivante pouvant &tre appliqu~e sous forme liquide sur Ia peau: com- pos&macro-mo 1cu lair- 6lastom~re et/ou thermoplastique de 5 d 15 en poids, colophane naturelle et/ou colophane mo- difi~e de 40 A 80 en poids, assouplissant tel que notamnment graisse, huile ou cire de 10 A 20 en poids.

I la A NEW DEPILATORY COMPOSITION

The present invention relates to a new depilatory composition, its mode of preparation and its directions for use.

At the present time, compositions generally called "waxes" are used for depilation purposes, based on resins either pure or modified, mixed with fat products such as: bees-wax, mineral wax, oil, lanolin, etc...

These compositions are applied on the skin in the hot state as a relatively thick layer, and are reusable after 15 filtration. The thickness of the layer allows the wax not to cool down too rapidly and therefore to retain a ecertain degree of flexibility, since below a certain temperature the wax becomes completely hard and brittle and is therefore unusable in that state.

There are also other compositions, generally called lukewarm waxes, based on resin or modified resin, or on a o* synthetic resin, fat products, honey and other products sees such as glucose, honey, etc. oo-.

This type of wax is applied in a thin layer and is removed with the assistance of a cellulose material strip, notably a "cellophane" band or a nonwoven, reason *for which it is called "disposable wax".

On the other hand, the present applicant has proposed (see European patent number 86 400 311 published under number 0 194 181) a new depilatory composition, called "low temperature" and "disposable", meaning that it is not intented for being reused after filtration, with its main constituent being a resin salt, and notably a

S901023,dblet039,dbll99354.spec, o' triethanolamine resinate, which is also applied in a very thin layer and is removed with the assistance of a strip of cellulose film, and notably of "cellophane".

The present invention aims at providing a new generation of depilatory compositions, which are easier to use than the depilatory compositions presently available.

To this effect, the invention relates to a new depilatory composition or "depilatory wax" of the "low temperature" and "disposable" type, characterized by the fact that:

1) it contains as main constituent an elastomeric and/or thermoplastic macro-molecular compound, allowing 15 control of the resiliency of the composition at room temperature and without this wax breaking into pieces due to the homogeneity imparted to the mixture; S

2) there is added to this main constituent:

natural or modified resin imparting tackiness to the product;

softeners selected from fats for example, lanoline, S 25 talloil, natural or synthetic waxes for example, bees- eeoc..

wax, paraffin, micro-crystalline wax, etc, oils for example, colzaseed oil, litmus oil, cornoil, vaseline oil, etc. and

possibly fillers (calcium carbonate or titanium dioxide),

whereby this depilatory wax can be deposited in a thin layer, contrary to hot waxes which are deposited in a relatively thick layer, or to the so-called disposable lukewarm waxes which have to be used with a strip of

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"cellophane".

Amongst the elastomers which can be used as essential constituent of the depilatory composition according to the present invention, one may cite notably (of course this list having by no way any limiting character):

natural rubber, synthesis elastomers chosen notably in the groups incluCing:

the copolymers or terpolymers of ethylene-propylene; the styrene-butadiene copolymers; the vinyl ethylene-acetate copolymers; the acrylic polymers; 15 the butadiene, isoprene, isoprene-isobutene, isobutene, chloroprene elastomers; the nitroxyl rubbers; the polyester thermoplastic elastomers.

According to a preferred but not limiting way of providing a depilatory wax according to the invention, said wax has the following composition:

Elastomer 5 to 15% parts by weight 25 Resin and modified resin 40 to 80% Softener (wax or oil) 10 to The composition can also include fillers such as notably a calcium carbonate or titanium bioxide in a proportion of the order of 5 to

According to the invention, the hereabove depilatory composition, once it has been previously slightly heated, becomes an unctuous liquid of which a small quantity is taken by using a spatula so as to apply it in the direction of the hairs in the form of strips having dimensions varying according to the part to be depilated.

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These strips present the property of being applied in a thin and regular layer on the skin.

One can also apply the wax using a distributing apparatus, heating or not, and provided with a tank adapted to contain wax. One leaves the compound for a few moments to "set" so that the thin layer gives rise, through lymerization, to a thin plastic film which catches the hairs without adhering to the skin, since the strip has lost its tackiness, in its outer surface on top and underneath. Thereafter, it is enough to peel away the thin film in order to pull out the hairs captured in the band. O So

15 It is possible, by replacing in the hereabove mentioned formula the resins by some types of liquid resins, to use the depilatory product according to the invention at room temperature without having to previously heat it. However, this product has to be kept sheltered from the air when stored. e

se. Hereafter is given by the way of example and without any limiting character a mode of preparation of a depilatory composition according to the present invention. s One begins by melting the chosen elastomer to a temperature between 90 and 160°C, as a function of the nature of said elastomer. There is then added to the product thus obtained all the other hereabove mentioned components, while maintaining the temperature of the mixture at a minimum of more or less 100 0 C. Since the elastomer is not a soluble product, it is necessary to provide a depilatory product of great homogeneity to mix it for a certain duration in an appropriate stirrer.

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Claims

rHE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:

1. A depilatory composition called "depilatory wax", of the disposable type which can be deposited on the surface of the skin, including a elastomeric and/or thermoplastic macro-molecular compound, resin and softeners characterized by the following composition which is applied in a liquid form on the skin:

Elastomeric and/or thermoplastic macro-molecular compound 5 to parts by weight Natural resin and/or modified resin 40 to parts by weight 15 Softeners selected from ntably fat, oil and wax 10 to parts by weight 4

2. A depilatory composition according to claim 1, characterized in that the elastomeric compound is natural rubber. *000

3. A depilatory composition according to claim 1, characterized in that the elastomeric compound is a S 25 synthesis elastomer selected from:

the copolymers or terpolymers of ethylene-propylene; the styrene-butadiene copolymers; i the vinyl ethylene-acetate copolymers; the acrylic polymers; the butadiene, isoprene, isoprene-isobutene, isobutene, chloroprene elastomers; the nitroxyl rubbers; the polyester thermoplastic elastomers.

S7901023,dblet039,dbll99354.spec,5 o r 4 %PI i

4. A depilatory composition according to any one of the preceding claims, characterized in that it includes moreover fillers selected from calcium carbonate and titanium bioxide in a proportion of the order of 5 to by weight.

Hair removing process using a depilatory composition according to any one of the preceding claims characterized in that it comprises:

spreading the composition in liquid form by using a s spatula or a distributing apparatus in order to obtain a thin layer on the skin

peeling away said thin film in order to pull out the hair captured in the film.

S sees

SDATED this 23rd day of October, 1990

Christian Des Garets as. By his Patent Attorneys DAVIES COLLISON

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INTERNATIONAL SEARCH REPORT International Application No PCT/FR 88/00328 I. CLASSIFICATION OF SUBJECT MATTER (if several classification symbols apply, Indicate all) 6 According to International Patent Classification (IPC) or to both National Classification and IPC

Int.Cl 4 A 61 K 7/155 II. FIELDS SEARCHED

Minimum Documentation Searched 7 Classification System Classification Symbols

Int.C1 4 A 61 K 7/00

Documentation Searched other than Minimum Documentation 8 to the Extent that such Documents are Included in the Fields Searched

9 III. DOCUMENTS CONSIDERED TO BE RELEVANT Category Citation of Document, 11 with indication, where appropriate, of the relevant passages 12 Relevant to Claim No. 1

X US, A, 4282877 (MATHEWS) 11 August 1981, 1-3 see claim 1 Y

X Chemical Abstracts, volume 104, 1986 1-3 (Columbus, Ohio, US), see page 377, abstract No. 74822g, JP, A, 60202810 (NICHIBAN CO., LTD) 14 October 1985 Y

X Chemical Abstracts, volume 94, No. 22, 1-3 1 June 1981 (Columbus, Ohio, US), see page 366, abstract No. 180497q, JP, A, 8116407 (NITTO ELECTRIC INDUST- RIAL CO., LTD) 17 February 1981 Y i

Y CA, A, 1185186 MIDIATY) 9 April 1985, see page 4

Special categories of cited documents: i later document published after the international filing date document defining the general state of the art which is not or priority date and not in conflict with the application but considered to be of particular relevance cited to understand the principle or theory underlying the d invention earlier document but published on or after the international document of particular relevance; the claimed invention filing date cannot be considered novel or cannot be considered to document which may throw doubts on priority claim(s) or involve an inventive step which is cited to establish the publication date of another document of particular relevnce; the claimed Invention citation or other special reason citation reason (as r other specified) (as special specified) cannot be considered to involve an inventive step when the document referring to an oral disclosure, use, exhibition or document is combined with one or more other such docu- other means ments, such combination being obvious to a person skilled document published prior to the international filing date but in the art. later than the priority date claimed document member of the same patent family

IV. CERTIFICATION Date of the Actual Completion of the International Search Date of Mailing of this International Search Report

September 1988 (30.09.88) 25 October 1988(25.10.88) International Searching Authority Signature of Authorized Officer

EUROPEAN PATENT OFFICE Form PCT/ISA/2t0 (second sheet) (January 1985) ii i NOW-

ANNEX TO THE INTERNATIONAL SEARCH REPORT ON INTERNATIONAL PATENT APPLICATION NO. FR 8800328 SA 23166

This annex lists the patent family members relating to the patent documents cited in the above-mentioned international search report. The members are as contained in the European Patent Office EDP file on 14/10/88 The European Patent Office is in no way liable for these particulars which are merely given for the purpose of information.

Patent document Publication Patent family Publication cited in search report date member(s) date

US-A- 4282877 11-08-81 GB-A,B 2085723 06-05-82

CA-A- 1185186 09-04-85 Aucun

-s For more details about thi annex :see Official Journal of the European Patent Office, No. 12/82 WFor more details about this annex see Official Journal of the European Patent Office, No. 12/82

RAPPORT DE RECHERCHE INTERNATIONALE Demand. internationa.N' PCT/FR 88 /00328 1, CLASSEMENT DE L'INVENTION (Si plusieura symboles dle classification sont applicables. Ies incdiquer tous)7 st classification ii'ternatioriile des brevets (CIB) ou h Is tois selon Ia classification national. etlI& CIB

CIB A 61 K 7/155

it. OMAINES SUR LESQUELS LA RECHERCHE A PORT9 Documentation minimale consultdeI Systilme de classification Symboles de classification

CIB 4 A 61 K7/00 Documentation conaulike autre que Is documentation minimal. dans Ia mesure 0i0 de tots documents font partie des domaines aur teaquela Is recherche a Pot I

Ill. DOCUMENTS CONSID11RIS COMME PERTINENTS

Cattgorie *Identification des documents citts, I avec indication, si n~cessaire, N* des ravendlications des passages pertinents 12 visaes I

X US, A,4282877 (MATHEWS) 11 aott 1981, voir 1-3 revendication 1 y

X Chemical Abstracts, vol. 104, 1986 1-3 (Columbus, Ohio, US), voir page 377, r~suxn6 no. 74822g, JP, A, 60202810 (NICHIBAN CO., LTD) 14 octobre 1985 Y X Chemical Abstracts, vol. 94, no. 22, 1-3 ler juin 1981 (Columbus, Ohio, US), voir page 366, r~sun6 no. 180497q, JP, A, 8116407 (NITTO ELECTRIC INDUSTRIAL CO., LTD) 17 f6vrier 1981 Y

Y CA, A, 1185186 MIDIATY) 9 avril 1985, voir page 4 Categories apiciates do documents citils: 11 aT a document uIttriour publli Postiriaurementh Iodated* d#P6t 41A document difinissant lttat general de Ia techniquo, non international Cu A Is date do priorite at n'appartenant pas pa cuI i~omet consder com PetinntA Ittat de Ia technique Pertinent, mais cite Pour comprendre "Eadc na ri m atiuli al men tartinen t inera I* Principe Cu Is thtorie constituent Isbase do Pinvention d oun anriour ai tiona pubte adl odptitrs a X at document particulilirement partinenti t'invention revendi- tiontdteauto ouaprl cete no Pout ire conaidirike comma nouvelleoCu comme Lav document Pouvant tater un doute our une rovenclication de impfiquant une activitt 4iventivii priorilt ou cite pour determiner ta date ao Publication d'une dcmn atclhemtpriot ivninrvn autre citation ou pour une raison apiciale (tells qu'indiqute) a Yea dicume no t rituirmn c Pnidrincomm l'in ant uevn. aOo document 9e rtirant Aune divulgation orate, A un usage, A ectiviti' Inventive torsque I* document eat associt a un ou un. exposition ou tous autres mayens plusiourA outros documents do memo nature, calls combi. aoP a document Pubit avant to date de dio6t international, mais naiaon itanit vidonte pour une parsonne du metier. postiriourement ts date do priorit# revandiqlute a A a document qul tait Partie do Ia mime famitll do brevets IV. CERTIFICATION t Date Alaquette to rectherche Internationale a eflectivement Date d'expidition du prisent rapport do rechterche n ernationale septembre 1988 P2 5 OCT 1988 Administration chargte do Ia recherchte intornationale Si du c" lli." OFFICE EtJROPEEN DES BREVETS M PlumTE formulaire PCT/ISA/210 (deuxioma teuillet (jerivio 19S5)

ANNEXE AU RAPPORT DE RECHERCHE INTERNATIONALE RELATIF A LA DENIANDE INTERNATIONALE NO. FR 8800328 SA 23166 La pr~sente annexe indique les membres -0e la famille de brevets rclatifs aux documents brevets cites davis le rapport de recherche international vis6 ci-dessus. Lesdits members sont contenus au fichicr informatique de l'Office europ~en des brewvts a la date do 14/10/88 Les renseignements fournis sont donnes a titre indicatif et n'engagent pas la responsabilit6 dc ['Office europ~en des brevets.

Document brcvet 0i6 Date de Mcmbrc(s) de la Date dc au rapport dc recherche publication famille de brevet(s) publication

US-A- 4282877 11-08-81 GB-A,B 2085723 06-05-82

CA-A- 1185186 09-04-85 Aucun

flour tout renseignement concernant cette annexe :voir Journal Officiel de I'Office europtin des brc~ets, So.12/82